For some people the display looked a little too realistic because someone rushed to help thinking it was a real person - they even called 911 along with about a dozen other people.
To recreate the scene in "National Lampoon's Christmas Vacation" where Clark Griswold slips from the roof while putting up Christmas lights, the family bought a dummy online and positioned a ladder beneath it to look like it's tipping over. "Let me call 911,"' Norwood said to KVUE.
"Oh mister, please hold on!" the man could be heard saying in the video as he struggles with a nearby ladder to rescue the mannequin.
Police reportedly came to the home to find the man was a dummy. "And be like 'Save Clark!'" Heerlein's sister-in-law Leah Wheless said. The woman who answered was the nanny, KVUE reported, and she said she would let the family know about the 911 call. "Whatever he had to do, he was going to save old Clark Griswold".
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They felt so bad about the passerby's reaction that they reached out to him to thank him for being so concerned.
Alfred, who eventually realized that the Clark Griswold decorations weren't real, had a sense of humor about the holiday mishap.
He told ABC 13: "I was trying to get him down any way I can".
They have also added a sign to the bottom of their display, explaining that the scene is a decoration. It also nearly gave a man a heart attack, Hannah Newman Heerlein posted to Facebook. "Except when I started talking to him, he never said nothing!" the passerby told KVUE.